PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5246Plunger,stop

Air-Lock, Incorporated · NSN 4220-00-249-0934 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-00-249-0934 — this item is cataloged by the U.S. Government under National Stock Number 4220-00-249-0934. Primary manufacturer part number: 5246.
Features
  • Plunger,stop — FSC 4220
  • 1 verified cross-reference
  • Primary manufacturer: Air-Lock, Incorporated
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Plunger,stop, cataloged under National Stock Number 4220-00-249-0934, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Air-Lock, Incorporated. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePlunger,stop
FSC / FSG4220 — No Item Name Available (FSG 42)
ManufacturersAir-Lock, Incorporated (CAGE 97375)
Technical Specifications
ParameterValue
NSN4220-00-249-0934
Primary Part Number5246
Item NamePlunger,stop
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerAir-Lock, Incorporated
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-126-68595246 INTERCHANGEABLE
Pin,straight,headed
Brinkley Technology Group Llc Dba Hercules Manufacturing
5945-00-436-220521005610 INTERCHANGEABLE
Relay,electromagnetic
Cam Fabricated Systems Inc
4820-00-541-0454313850 INTERCHANGEABLE
Valve,safety Relief
Hydro-Aire Aerospace Corp
5930-00-548-4449 INTERCHANGEABLE
Switch,push
2815-00-593-12707F2454 INTERCHANGEABLE
Valve,poppet,engine
Caterpillar Inc Div Caterpillar Defense
4820-00-622-68145246 INTERCHANGEABLE
Parts Kit,pressure Regulating VA
Aerco International, Inc. Dba Aerco International Inc
5935-00-660-70085256 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5915-00-681-6482 INTERCHANGEABLE
Filter,low Pass
6240-00-763-34501893 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5330-00-884-4623G8-151140 INTERCHANGEABLE
Gasket
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
Cross-Reference Index
Part NumberManufacturer
5246 PRIMARY Air-Lock, Incorporated (USA)
Related Parts
5315-00-126-6859INTERCHANGEABLE
PIN,STRAIGHT,HEADED
5246
5945-00-436-2205INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
21005610
4820-00-541-0454INTERCHANGEABLE
VALVE,SAFETY RELIEF
313850
5930-00-548-4449INTERCHANGEABLE
SWITCH,PUSH
2815-00-593-1270INTERCHANGEABLE
VALVE,POPPET,ENGINE
7F2454
4820-00-622-6814INTERCHANGEABLE
PARTS KIT,PRESSURE REGULATING VA
5246
5935-00-660-7008INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5256
5915-00-681-6482INTERCHANGEABLE
FILTER,LOW PASS
6240-00-763-3450INTERCHANGEABLE
LAMP,INCANDESCENT
1893
5330-00-884-4623INTERCHANGEABLE
GASKET
G8-151140
5330-00-934-8089INTERCHANGEABLE
GASKET
5246
6515-01-003-2120INTERCHANGEABLE
TUBE,INHALER

Frequently Asked Questions

What is NSN 4220-00-249-0934?

NSN 4220-00-249-0934 is a Plunger,stop, manufactured by Air-Lock, Incorporated, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-00-249-0934?

NSN 4220-00-249-0934 has 1 cross-referenced part number: 5246 (Air-Lock, Incorporated).

What NSN replaces 4220-00-249-0934?

There are 12 known substitutes for 4220-00-249-0934: 5315-00-126-6859, 5945-00-436-2205, 4820-00-541-0454 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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